Invention Grant
- Patent Title: Massive MIMO array testing using a programmable phase matrix and channel emulator
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Application No.: US15782769Application Date: 2017-10-12
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Publication No.: US10313034B2Publication Date: 2019-06-04
- Inventor: Alfonso Rodriguez-Herrera , John Douglas Reed
- Applicant: Spirent Communications, Inc.
- Applicant Address: US CA San Jose
- Assignee: Spirent Communications, Inc.
- Current Assignee: Spirent Communications, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Haynes Beffel & Wolfeld LLP
- Agent Ernest J. Beffel, Jr.; Andrew L. Dunlap
- Main IPC: H04B17/21
- IPC: H04B17/21 ; H04B17/391 ; H04B17/00 ; H04B7/0413

Abstract:
The disclosed systems and methods for conducted massive MIMO array testing uses an efficient method of utilizing hardware resources for emulating signals from a massive MIMO base station transceiver to a MIMO mobile unit as dictated by a channel model; and also for emulating signals from a MIMO mobile unit to a massive MIMO BS transceiver, as dictated by a channel model. The system uses a phase matrix combiner to emulate the angular behavior of the propagation using virtual probes, combined with a radio channel emulator to create the temporal, multipath, and correlation behavior of the propagation. Using a phase matrix function increases the number of antenna elements that can be utilized in a massive MIMO array emulation while keeping the required number of fading channels within the radio channel emulator at a reduced number, thus forming a cost effective, yet realistic test system for massive MIMO testing.
Public/Granted literature
- US20190115989A1 MASSIVE MIMO ARRAY TESTING USING A PROGRAMMABLE PHASE MATRIX AND CHANNEL EMULATOR Public/Granted day:2019-04-18
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